Amazon.Glacier.Transfer.Internal.DownloadFileCommand.readNextMessageAsync C# (CSharp) Method

        async Task<Message> readNextMessageAsync()
        {
            int retryAttempts = 0;
            var receiveRequest = new ReceiveMessageRequest() { QueueUrl = this.queueUrl, MaxNumberOfMessages = 1 };
            while (true)
            {
                try
                {
                    var receiveResponse = await this.sqsClient.ReceiveMessageAsync(receiveRequest).ConfigureAwait(false);
                    retryAttempts = 0;

                    if (receiveResponse.Messages.Count == 0)
                    {
                        await Task.Delay((int)(this.options.PollingInterval * 1000 * 60)).ConfigureAwait(false);
                        continue;
                    }

                    return receiveResponse.Messages[0];
                }
                catch (Exception)
                {
                    retryAttempts++;
                    if (retryAttempts <= MAX_OPERATION_RETRY)
                        Task.Delay(1000 * 60).Wait();
                    else
                        throw;
                }
            }
        }